An article on Thursday about President Obama’s decision to declare his support for same-sex marriage described incorrectly in some editions a transcript circulated within the White House of Vice President Joseph R. Biden Jr.’s earlier remarks on the subject. The transcript, of a taping on Friday for broadcast on NBC’s “Meet the Press” on Sunday, had the vice president’s remarks on gay marriage highlighted in yellow. It was not the case, as a White House official said, that the vice president’s office did not call the comments to anyone’s attention.